Kusukela ku-Silicon kuya ku-Silicon Carbide: Indlela Izinto Ezisebenza Ngokushisa Okuphezulu Ezichaza Kabusha Ngayo Ukupakisha Ama-Chip

I-silicon ibilokhu iyitshe lesisekelo lobuchwepheshe be-semiconductor. Kodwa-ke, njengoba ubuningi be-transistor bukhula futhi ama-processor esimanje kanye namamojula wamandla ekhiqiza ubuningi bamandla obuphakeme kakhulu, izinto ezisekelwe ku-silicon zibhekene nemikhawulo eyisisekelo ekuphathweni kokushisa kanye nokuzinza kwemishini.

I-silicon carbide(SiC), i-semiconductor ebanzi ye-bandgap, inikeza ukuguquguquka okuphezulu kakhulu kokushisa kanye nokuqina komshini, ngenkathi igcina ukuzinza ngaphansi kokusebenza kwezinga lokushisa eliphezulu. Lesi sihloko sihlola indlela ukushintsha kusuka ku-silicon kuya ku-SiC okushintsha ngayo ukupakisha ama-chip, okuqhuba amafilosofi amasha okuklama kanye nokuthuthukiswa kokusebenza kwezinga lesistimu.

1. Ukuqhuba Ukushisa: Ukubhekana Nenkinga Yokushabalalisa Ukushisa

Enye yezinselele eziyinhloko ekupakisheni ama-chip ukususa ukushisa ngokushesha. Amaprosesa asebenza kahle namadivayisi kagesi angakhiqiza amakhulu kuya ezinkulungwaneni zama-watts endaweni encane. Ngaphandle kokushabalalisa ukushisa okuphumelelayo, kuvela izinkinga eziningana:

• Amazinga okushisa aphezulu e-junction anciphisa isikhathi sokuphila kwedivayisi

• Ukushelela kwezici zikagesi, okubeka engcupheni ukuzinza kokusebenza

• Ukuqongelela kokucindezeleka kwemishini, okuholela ekuqhekekeni noma ekwehlulekeni kwephakheji

I-Silicon inokushisa okuhambayo okungaba ngu-150 W/m·K, kanti i-SiC ingafinyelela ku-370–490 W/m·K, kuye ngokuthi i-crystal orientation kanye nekhwalithi yezinto ezibonakalayo injani. Lo mehluko obalulekile wenza ukupakishwa okusekelwe ku-SiC kube:

• Phehla ukushisa ngokushesha nangokulinganayo

• Amazinga okushisa aphezulu kakhulu e-peak junction

• Nciphisa ukuthembela ezixazululweni zokupholisa zangaphandle ezinkulu

2. Ukuzinza Kwemishini: Isihluthulelo Esifihliwe Sokuthembeka Kwephakheji

Ngaphandle kokucabangela ukushisa, amaphakheji e-chip kumele amelane nokujikeleza kokushisa, ukucindezeleka komshini, kanye nemithwalo yesakhiwo. I-SiC inikeza izinzuzo eziningana ngaphezu kwe-silicon:

• I-modulus ye-Higher Young: I-SiC iqine ngokuphindwe kabili kuya kathathu kune-silicon, imelana nokugoba nokuqhekeka

• I-coefficient ephansi yokwanda kokushisa (i-CTE): Ukuhambisana okungcono nezinto zokupakisha kunciphisa ukucindezeleka kokushisa

• Ukuqina okuphezulu kwamakhemikhali nokushisa: Kugcina ubuqotho ngaphansi kwezimo ezimanzi, ezishisa kakhulu, noma ezigqwalisayo

Lezi zakhiwo zinegalelo ngqo ekuthembekeni okuphezulu kwesikhathi eside kanye nokukhiqiza, ikakhulukazi ekufakweni kwamaphakheji anamandla aphezulu noma anabantu abaningi.

3. Ushintsho kuFilosofi Yokuklama Ukupakisha

Ukupakishwa kwendabuko okusekelwe ku-silicon kuncike kakhulu ekuphathweni kokushisa kwangaphandle, njenge-heatsinks, ama-cold plate, noma ukupholisa okusebenzayo, okwakha imodeli "yokuphathwa kokushisa okungenamsebenzi". Ukwamukelwa kwe-SiC kuyishintsha kakhulu le ndlela:

• Ukuphathwa kokushisa okufakiwe: Iphakheji ngokwayo iba yindlela yokushisa esebenza kahle kakhulu

• Ukusekelwa kobuningi bamandla aphezulu: Ama-chips angabekwa eduze noma abekwe ndawonye ngaphandle kokudlula imingcele yokushisa

• Ukuguquguquka okukhulu kokuhlanganiswa kwesistimu: Ukuhlanganiswa kwama-chip amaningi kanye nokungafani kuyenzeka ngaphandle kokubeka engcupheni ukusebenza kokushisa

Empeleni, i-SiC akuyona nje "into engcono" - ivumela onjiniyela ukuthi bacabange kabusha ngokuhlelwa kwama-chip, ukuxhumana, kanye nokwakhiwa kwamaphakheji.

4. Imiphumela Yokuhlanganiswa Okungajwayelekile

Izinhlelo zesimanje ze-semiconductor ziya ngokuya zihlanganisa amadivayisi e-logic, amandla, i-RF, ngisho ne-photonic ngaphakathi kwephakeji elilodwa. Ingxenye ngayinye inezidingo ezihlukile zokushisa nezomshini. Ama-substrate nama-interposer asekelwe ku-SiC ahlinzeka ngeplatifomu ehlanganisayo esekela lokhu kuhlukahluka:

• Ukushisa okuphezulu kwenza ukusatshalaliswa kokushisa okufanayo kumadivayisi amaningi

• Ukuqina kwemishini kuqinisekisa ubuqotho bephakheji ngaphansi kokufakwa okuyinkimbinkimbi kanye nezakhiwo ezinabantu abaningi

• Ukuhambisana namadivayisi e-wide-bandgap kwenza i-SiC ifaneleke kakhulu kumandla esizukulwane esilandelayo kanye nezinhlelo zokusebenza zekhompyutha ezisebenza kahle kakhulu

5. Izinto Okumelwe Zicatshangelwe Ezokukhiqiza

Nakuba i-SiC inikeza izakhiwo zezinto ezibonakalayo ezinhle kakhulu, ubulukhuni bayo kanye nokuqina kwamakhemikhali kuletha izinselele zokukhiqiza ezihlukile:

• Ukunciphisa i-wafer nokulungiswa kwendawo: Kudinga ukugaya nokupholisha ngokunembile ukuze kugwenywe imifantu nokuqhekeka

• Ngokwakheka kanye nokudweba amaphethini: Ama-via anesilinganiso esiphakeme avame ukudinga amasu okuchoma okomile asekelwe yi-laser noma athuthukisiwe

• Ukwenziwa kwensimbi kanye nokuxhumana: Ukunamathela okuthembekile kanye nezindlela zikagesi ezingamelani kahle kudinga izendlalelo ezikhethekile zezithiyo

• Ukuhlolwa nokulawulwa kwesivuno: Ukuqina kwezinto eziphezulu kanye nosayizi omkhulu we-wafer kukhulisa umthelela weziphambeko ezincane ngisho nangokwengeziwe

Ukubhekana ngempumelelo nalezi zinselele kubalulekile ekuqapheleni izinzuzo ezigcwele ze-SiC ekupakisheni okusebenzayo kakhulu.

Isiphetho

Ukushintsha kusuka ku-silicon kuya ku-silicon carbide kumelela okungaphezu kokuthuthukiswa kwezinto ezibonakalayo—kubumba kabusha yonke indlela yokupakisha ama-chip. Ngokuhlanganisa izakhiwo eziphakeme zokushisa nezomshini ngqo ku-substrate noma i-interposer, i-SiC inika amandla aphezulu, ukuthembeka okuthuthukisiwe, kanye nokuguquguquka okukhulu ekwakhiweni kwezinga lesistimu.

Njengoba amadivayisi e-semiconductor eqhubeka nokunciphisa imikhawulo yokusebenza, izinto ezisekelwe ku-SiC azizona nje izithuthukisi ezingakhethwa—ziyizinto ezibalulekile ezisiza ubuchwepheshe bokupakisha besizukulwane esilandelayo.